Abstract
THE triangle-shaped Indian peninsula is a plateau characterized by several mountain ranges, hills, rivers, deep broad valleys and plains of different elevations. Bordered by continental shelfs, it is believed to be a Pre-Cambrian platform the basement of which is formed by Archaean gneisses, schists and igneous metamorphosed rocks. While the Deccan Traps are the cover sediments in north-western peninsular regions, the basement rocks themselves are exposed in the southern, eastern and northern territories occupying nearly two-thirds of the shield area.
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References
Gubin, I. E., Bull. Inter. Inst. Seism. Earthq. Eng., 5, 109 (1968).
US Coast and Geodetic Survey, Earthquake Data Report, No. 77–67 (January 9, 1968); ibid., No. 31–69 (May 15, 1969).
Arora, S. K., and Manekar, A. M., Bull. Seism. Soc. Amer., 59, 777 (1969).
Herrin, E., Bull. Seism. Soc. Amer., 58, 1193 (1968).
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ARORA, S., VARGHESE, T. & KRISHNAN, C. Some Aspects of the Structure of Southern India based on Recent Bhadrachalam Earthquakes. Nature 225, 261–262 (1970). https://doi.org/10.1038/225261a0
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DOI: https://doi.org/10.1038/225261a0
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